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OUBA Cordless Angle Grinder Compatible for Dewalt 20V vs Makita 9557NB 4-1/2" Angle Grinder

Updated July 2026 — OUBA Cordless Angle Grinder Compatible for Dewalt 20V wins on speed settings, Makita 9557NB 4-1/2" Angle Grinder wins on rpm and power.

The OUBA cordless angle grinder offers great value for casual users, while the Makita excels in performance for professionals.

Why OUBA Cordless Angle Grinder Compatible for Dewalt 20V is better

Price

OUBA is cheaper at $69.99 compared to Makita's $84.01.

Speed Settings

OUBA has three variable speed settings for versatility.

Weight

OUBA is lighter and easier to handle for casual users.

Why Makita 9557NB 4-1/2" Angle Grinder is better

Power

Makita has a higher RPM at 11,000 compared to OUBA's 9,500.

Durability

Makita features a robust build with protective varnish.

Professional Use

Makita is designed for heavy-duty tasks and frequent use.

Overall score

OUBA Cordless Angle Grinder Compatible for Dewalt 20V
75
Makita 9557NB 4-1/2" Angle Grinder
85

Specifications

SpecOUBA Cordless Angle Grinder Compatible for Dewalt 20VMakita 9557NB 4-1/2" Angle Grinder
Motor TypeBrushless7.5 AMP
CompatibilityDewalt 20VAC/DC
Handle TypeAnti-slipPaddle Switch
ConstructionPlasticMetal
Battery IncludedYesNo

Dimension comparison

OUBA Cordless Angle Grinder Compatible for Dewalt 20VMakita 9557NB 4-1/2" Angle Grinder

Overview of the Cordless Angle Grinder and Makita 9557NB

When comparing the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery and the Makita 9557NB 4-1/2" Angle Grinder, it's clear that each offers unique advantages tailored to different user needs. The OUBA cordless angle grinder is priced at $69.99, making it about 17% cheaper than the Makita at $84.01. This price difference may appeal to users looking for a budget-friendly option without sacrificing quality. However, the Makita boasts a higher RPM and is designed for heavy-duty tasks, attracting professionals who prioritize performance.

Design and Build Quality

The design and build quality of the OUBA cordless angle grinder cater to specific requirements, emphasizing versatility and comfort. Weighing less than traditional models, it features a rubberized anti-slip handle for improved grip, allowing users to handle it comfortably in various situations. On the other hand, the Makita 9557NB is built with an all-ball bearing design and a metal gear housing, ensuring durability and longevity. The compact design and lightweight construction (only 4.5 lbs) of the Makita contribute to its user-friendly nature, making it suitable for extended use in demanding environments.

Power and Performance

In terms of power and performance, the OUBA cordless angle grinder features a brushless motor that can reach speeds of up to 9,500 RPM. This is adequate for many grinding, cutting, and polishing tasks, particularly for DIY enthusiasts and casual users. In contrast, the Makita 9557NB offers a more robust 7.5 AMP motor that delivers an impressive 11,000 RPM. This higher speed is ideal for professionals requiring high output power for demanding applications. Consequently, if your projects involve tougher materials or require more intensive use, the Makita may be the better choice.

Compatibility and Usability

The OUBA cordless angle grinder is specifically engineered for compatibility with Dewalt 20V MAX batteries, eliminating the need for additional batteries and enhancing convenience for users who already own Dewalt tools. This feature not only saves money but also streamlines the user experience. Meanwhile, the Makita 9557NB is designed with an AC/DC switch that allows it to be powered by alternative sources, making it versatile for different job sites. Users who require flexibility in power sources may find the Makita more appealing, especially in environments where battery power isn’t feasible.

Speed Settings and Control

Control and ease of use are critical factors when selecting an angle grinder. The OUBA model includes three variable speed settings, allowing users to adjust speeds based on task requirements. This feature, coupled with an LED display for easy monitoring, enhances precision and work quality. The Makita, while not featuring variable speeds, does have a lock-on/off switch that provides ease during prolonged operations. Although it may not offer the same level of customization as the OUBA, its consistent power output can be advantageous for specific grinding tasks.

Maintenance and Longevity

For maintenance and longevity, the OUBA cordless angle grinder features a brushless motor that not only runs quieter but also uses battery power more efficiently, which may lead to a longer lifespan compared to traditional motors. Meanwhile, the Makita 9557NB incorporates protective features such as a zig-zag varnish that seals the armature against dust and debris, enhancing tool life significantly. Users who prioritize durability may find the Makita’s construction more appealing, especially in dusty or rugged environments.

Price and Value

When it comes to price, the OUBA cordless angle grinder, priced at $69.99, provides a more budget-friendly option for users looking for a versatile tool without breaking the bank. The Makita 9557NB, at $84.01, is about 20% more expensive but offers features that may justify the higher cost for professional users. The investment in the Makita could lead to better performance and durability, making it a worthwhile consideration for those who require a reliable, high-output tool for frequent use.

Which should you buy?

Ultimately, the decision between the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery and the Makita 9557NB 4-1/2" Angle Grinder comes down to user needs and preferences. If you are a DIY enthusiast or occasional user looking for a cost-effective solution with good versatility, the OUBA model is an excellent choice. However, for professionals who require a powerful, reliable tool capable of handling heavy-duty tasks, the Makita offers superior performance and durability. Consider your specific requirements and budget to make the best decision for your projects.